module: 'SoundPlugin' on Mac OS.

Hello squeak-dev,

I am developing a Squeak application
that is supposed to run on Microsoft Windows
and on Macs.

Recently I encountered the the following problem:
I do
   RecordingControlsMorph new openCenteredInWorld
this uses the SoundRecorder object.

On Windows everything works fine, but on Mac OS X
I get an error message from SoundRecorder:
   <primitive: 'primitiveSoundGetRecordingSampleRate' module:'SoundPlugin'>

saying that SoundPlugin is not available.

I assume there is no SoundPlugin for Mac OS. Would it be possible
to build a VM with this plugin or can I just download and install it
as an external plugin.

Thank you.

The systems I am running the application on are
System 1: Microsoft Windows XP prof. Ver 2002 Service Pack 2,
version VM: Squeak3.8-6665.

System 2: Mac OS X 10.4.6
version VM:  Squeak 3.7-7 (3.7-5989) or Squeak 3.8.14beta7U

--
Best regards,
 Danil                          mailto:[hidden email]

The soundplugin is builtin, lurking somewhere on the list is the  
magic Smalltalk code to get back a list of the loaded plugins, which  
would include the ones internally to the VM executable, and the ones  
you have loaded via a binary (externally).

In a quick look at the C code it looks like if the recording is NOT  
running it primitive fails the primitiveSoundGetRecordingSampleRate.
It is possible that the windows source code does not fail the  
primitive call, you would need to look at the windows source code to
confirm it's behaviour.

So start recording, then look at the  
primitiveSoundGetRecordingSampleRate value.


On Dec 21, 2006, at 11:01 AM, efimov wrote:

--
========================================================================
===
John M. McIntosh <[hidden email]>
Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
========================================================================
===

Hello, squeak-dev,

We have different problems with RecordingControlsMorph.
Mac OS Squeak 3.7-7 (3.7-5989) - VM crashes after rec button/any button
Mac OS Squeak 3.8.14b7 (3.8.14b7) - VM crashes after rec button
Unix
    3.7-7 #1 Sun Oct  8 20:08:59 NOVST 2006 gcc 4.0.2
    Squeak3.7 of '4 September 2004' [latest update: #5989]
    Linux 2.6.16-1.2069_FC4 #1 Tue Mar 28 12:19:10 EST 2006 i686 i686 i386 GNU/Linux
    default plugin location: /home/squeak/squeak/lib/squeak/3.7-7/*.so
    - application is buzzing after rec button.


Mac OS Squeak 3.7-7 (3.7-5989)  // have no crash damp

/Users/piumarta/squeak/3.7/platforms/unix/vm-sound-MacOSX/sqUnixSoundMacOSX.c:510:
failed assertion `s && s->buffer'




Version: Squeak VM 3.8.14b7 (3.8.14b7)

PID:    9278
Thread: 0

Exception:  EXC_BAD_ACCESS (0x0001)
Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000004

Thread 0 Crashed:
0   org.squeak.Squeak                   0x000ce3c4 Stream_setFormat + 596
1   org.squeak.Squeak                   0x000ce3b4 Stream_setFormat + 580
2   org.squeak.Squeak                   0x000cf048 sound_StartRecording + 152
3   org.squeak.Squeak                   0x0004ef00
primitiveSoundStartRecording.86 + 160
4   org.squeak.Squeak                   0x000b298c primitiveExternalCall + 1212
5   org.squeak.Squeak                   0x000bdb3c interpret + 6956
6   org.squeak.Squeak                   0x000e4f4c EventLoopEventHandler.109 +
156
7   com.apple.HIToolbox                 0x9321c794
DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
+ 692
8   com.apple.HIToolbox                 0x9321beec
SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*,
HandlerCallRec*) + 372
9   com.apple.HIToolbox                 0x9321bd68
SendEventToEventTargetWithOptions + 40
10  com.apple.HIToolbox                 0x932230c8
ToolboxEventDispatcherHandler(OpaqueEventHandlerCallRef*, OpaqueEventRef*,
void*) + 704
11  com.apple.HIToolbox                 0x9321c9e4
DispatchEventToHandlers(EventTargetRec*, OpaqueEventRef*, HandlerCallRec*)
+ 1284
12  com.apple.HIToolbox                 0x9321beec
SendEventToEventTargetInternal(OpaqueEventRef*, OpaqueEventTargetRef*,
HandlerCallRec*) + 372
13  com.apple.HIToolbox                 0x93222c8c SendEventToEventTarget + 40
14  com.apple.HIToolbox                 0x932639a0 ToolboxEventDispatcher + 92
15  com.apple.HIToolbox                 0x9326392c HLTBEventDispatcher + 16
16  com.apple.HIToolbox                 0x93261ee4 RunApplicationEventLoop + 148
17  org.squeak.Squeak                   0x000e5034
RunApplicationEventLoopWithSqueak + 196
18  org.squeak.Squeak                   0x000611cc main + 988
19  org.squeak.Squeak                   0x00007608 _start + 392 (crt.c:267)
20  dyld                                0x8fe01048 _dyld_start + 60

Thread 1:
0   libSystem.B.dylib                   0x90054fc8
semaphore_timedwait_signal_trap + 8
1   libSystem.B.dylib                   0x90071648
pthread_cond_timedwait_relative_np + 556
2   ...ple.CoreServices.CarbonCore      0x90bfbe90 TSWaitOnSemaphoreCommon + 176
3   ...ple.CoreServices.CarbonCore      0x90c03e2c TimerThread + 60
4   libSystem.B.dylib                   0x9002ba68 _pthread_body + 96

Thread 2:
0   libSystem.B.dylib                   0x9000b0a8 mach_msg_trap + 8
1   libSystem.B.dylib                   0x9000affc mach_msg + 60
2   com.apple.CoreFoundation            0x907e3b78 __CFRunLoopRun + 832
3   com.apple.CoreFoundation            0x907e347c CFRunLoopRunSpecific + 268
4   com.apple.audio.CoreAudio           0x9148c83c
HALRunLoop::OwnThread(void*) + 264
5   com.apple.audio.CoreAudio           0x9148c5dc
CAPThread::Entry(CAPThread*) + 96
6   libSystem.B.dylib                   0x9002ba68 _pthread_body + 96

Thread 0 crashed with PPC Thread State 64:
  srr0: 0x00000000000ce3c4 srr1: 0x000000000200f030                      
vrsave: 0x0000000000000000
    cr: 0x24024444          xer: 0x0000000000000004   lr:
0x00000000000ce3b4  ctr: 0x0000000000000001
    r0: 0x0000000000000000   r1: 0x00000000bfffc9c0   r2:
0x00000000000ce3b4   r3: 0x0000000000000000
    r4: 0x0000000000411710   r5: 0x0000000000000001   r6:
0x00000000ffffffff   r7: 0x0000000000000006
    r8: 0x000000007fffffff   r9: 0x00000000a0001fac  r10:
0x000000000000000d  r11: 0x0000000044024442
   r12: 0x000000009000660c  r13: 0x0000000000122c70  r14:
0x00000000bfffcc00  r15: 0x00000000a321c4f8
   r16: 0x0000000000412960  r17: 0x00000000bfffd0e0  r18:
0x000000004a4d4d32  r19: 0x000000004a4d4d32
   r20: 0x000000000041cc50  r21: 0x00000000ffffd96e  r22:
0x0000000000000000  r23: 0x0000000000001340
   r24: 0x0000000000122c70  r25: 0x0000000000100000  r26:
0x0000000000000001  r27: 0x00000000000014a8
   r28: 0x0000000000100000  r29: 0x000000007fffffff  r30:
0x0000000000000001  r31: 0x0000000000411710

Binary Images Description:
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3.8.14beta7U.app/Contents/MacOS/Squeak VM Opt
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(???)  
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(???)  
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(???)   /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/PrintCore.framework/Versions/A/PrintCore
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(???)   /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/QD.framework/Versions/A/QD
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(???)  
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/HIServices.framework/Versions/A/HIServices
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LangAnalysis.framework/Versions/A/LangAnalysis
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1.5    
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/FindByContent.framework/Versions/A/FindByContent
0x9196f000 - 0x919b1fff com.apple.LaunchServices
178    
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/LaunchServices
0x919cd000 - 0x919e1fff com.apple.speech.synthesis.framework
3.3    
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x919ef000 - 0x91a2efff com.apple.ImageIO.framework
1.4.6  
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/ImageIO
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJPEG.dylib
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libJP2.dylib
0x91c1c000 - 0x91c20fff libGIF.dylib
       
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x91c22000 - 0x91c69fff libRaw.dylib
       
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRaw.dylib
0x91c6e000 - 0x91cabfff libTIFF.dylib
       
/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libTIFF.dylib
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libPng.dylib
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ImageIO.framework/Versions/A/Resources/libRadiance.dylib
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        /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
0x9252c000 - 0x92857fff libLAPACK.dylib
        /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libLAPACK.dylib
0x92887000 - 0x9290ffff com.apple.DesktopServices
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(???)   /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
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3.4    
/System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecognition.framework/Versions/A/SpeechRecognition
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
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/System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
0x94772000 - 0x94a26fff com.apple.QuickTime
7.1.1   /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
0x94aea000 - 0x94b5bfff libstdc++.6.dylib       /usr/lib/libstdc++.6.dylib
0x97ce7000 - 0x97cf4fff com.apple.agl 2.5.6
(AGL-2.5.6)     /System/Library/Frameworks/AGL.framework/Versions/A/AGL

Model: PowerMac10,1, BootROM 4.8.9f4, 1 processors, PowerPC G4  (1.2),
1.25 GHz, 512 MB
Graphics: ATI Radeon 9200, ATY,RV280, AGP, 32 MB
Memory Module: DIMM0/J11, 512 MB, DDR SDRAM, PC3200U-30330
Modem: Jump, , V.92, Version 1.0,
Network Service: Built-in Ethernet, Ethernet, en0
Parallel ATA Device: ST940110A, 37.26 GB
Parallel ATA Device: MATSHITACD-RW  CW-8124,
USB Device: Generic USB Hub, ALCOR, Up to 12 Mb/sec, 500 mA
USB Device: Optical USB Mouse, Logitech, Up to 1.5 Mb/sec, 500 mA
USB Device: USB Device, , Up to 1.5 Mb/sec, 500 mA




the same problem on UNIX version:

here are a few further questions on the SoundPlugin's recording functionality in UNIX versions of the Squeak VM.

We have tested it under several operating environments and  found it working only on Windows.

On Linux the virtual machine starts an indefinite wait in __read_nocancel() when one pushes that same "Record" button in the RecordingControlsMorph.

Interestingly, the use of __read_nocancel() suggests running in multiple threads, however we could see only one execution thread in the VM process.

Can you give an advice on how to make SoundPlugin recording functionality to work on UNIX?

Here is some information on the VM versions that we used
Linux:
$ ./build/squeak -version
3.7-7 #1 Sun Oct  8 20:08:59 NOVST 2006 gcc 4.0.2
Squeak3.7 of '4 September 2004' [latest update: #5989]
Linux 2.6.16-1.2069_FC4 #1 Tue Mar 28 12:19:10 EST 2006 i686 i686 i386 GNU/Linux
default plugin location: /home/squeak/squeak/lib/squeak/3.7-7/*.so




--
Best regards,
 Danil                          mailto:[hidden email]

You wrote 23 декабря 2006 г., 0:19:57:

> If you try a Carbon Mac VM, say the 3.8.14b7   what happens.

> "RecordingControlsMorph Squeak crashes!"

> Does this mean the VM application crashes, if so do you have a crash  
> log from OSX?
> Is sound recording running when you ask for the sample rate? If sound
> recording is not running again I believe the behavior is to fail the  
> primitive.

> On Dec 22, 2006, at 6:41 AM, efimov wrote:

> --
> ========================================================================
> ===
> John M. McIntosh <[hidden email]>
> Corporate Smalltalk Consulting Ltd.
> http://www.smalltalkconsulting.com
> ========================================================================
> ===

Ok, in 3.8.14b7 sqMacMain.c Add signal handler on SIGSEGV, dump all  
stacks.

Please check your system.log and your console.log. There should be  
printfs of the Squeak smalltalk process stacks.

The MIT media lab folks over Christmas identified a problem in this  
logic where it would crash on stop recording under 10.3.
That seemed to be a race condition between the squeak process  
deleting the recording stream, and the termination of the
async process that uses the recording stream, I will issue a 3.8.14b8  
fix in a day or two.

However this problem seems to be a different issue, I'm puzzled by  
the fact the os-x carbon VM did not get the same assert error as the  
unix vm.

On Jan 8, 2007, at 6:11 AM, efimov wrote:

> Version: Squeak VM 3.8.14b7 (3.8.14b7)
>
> PID:    9278
> Thread: 0
>
> Exception:  EXC_BAD_ACCESS (0x0001)
> Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000004
>

--
========================================================================
===
John M. McIntosh <[hidden email]>
Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
========================================================================
===

Hello, John.

I guess the problem is in the byte order.
I took the same Squeak VM 3.8.14b7 (3.8.14b7),
the same image, but the results were different on a PowerPC Mac
and on an Intel Mac.
On PowerPC G4  (1.2) - VM crashed after push rec button in
RecordingControlsMorph.
On Intel Core Solo - everything is ok, not sure about sound
(i worked remote), but the VM did not crash.

looking forward for your reply

  Machine Name: Mac mini
  Machine Model:        PowerMac10,1
  CPU Type:     PowerPC G4  (1.2)
  Number Of CPUs:       1
  CPU Speed:    1.25 GHz
  L2 Cache (per CPU):   512 KB
  Memory:       512 MB
  Bus Speed:    167 MHz
  Boot ROM Version:     4.8.9f4
  Serial Number:        YM52814VTYV


  Machine Name:     Mac mini
  Machine Model:     Macmini1,1
  CPU Type:     Intel Core Solo
  Number Of Cores:     1
  CPU Speed:     1.5 GHz
  Memory:     512 MB
  Bus Speed:     667 MHz
  Boot ROM Version:     MM11.004B.B00
  Serial Number:     YM613833U35
  SMC Version:     1.3f2
  L2 Cache:     2 MB

--
Best regards,
 Danil                          mailto:[hidden email]

You wrote 8 jan 2007, 23:16:52:

> Ok, in 3.8.14b7 sqMacMain.c     Add signal handler on SIGSEGV, dump all
> stacks.

> Please check your system.log and your console.log. There should be  
> printfs of the Squeak smalltalk process stacks.

> The MIT media lab folks over Christmas identified a problem in this  
> logic where it would crash on stop recording under 10.3.
> That seemed to be a race condition between the squeak process  
> deleting the recording stream, and the termination of the
> async process that uses the recording stream, I will issue a 3.8.14b8
> fix in a day or two.

> However this problem seems to be a different issue, I'm puzzled by  
> the fact the os-x carbon VM did not get the same assert error as the  
> unix vm.

> On Jan 8, 2007, at 6:11 AM, efimov wrote:

>> Version: Squeak VM 3.8.14b7 (3.8.14b7)
>>
>> PID:    9278
>> Thread: 0
>>
>> Exception:  EXC_BAD_ACCESS (0x0001)
>> Codes:      KERN_PROTECTION_FAILURE (0x0002) at 0x00000004
>>

> --
> ========================================================================
> ===
> John M. McIntosh <[hidden email]>
> Corporate Smalltalk Consulting Ltd.
> http://www.smalltalkconsulting.com
> ========================================================================
> ===

Ok, thank you for the information, mind it seems we are copying the  
list, plus 5 others so it's quite a crowd.
However given the interest in ensuring sound recording works, I'll  
continue.

In looking at the dump, mind I did look at assembler dumps for IBM  
mainframes for a living in years past so doing this just brings back  
old memories
versus being difficult,  I see the following  (Hah, assuming I'm not  
being a bit careless here) anyway...


0x000ce510 <Stream_setFormat+576>: bl 0xcd260 <Buffer_new>
0x000ce514 <Stream_setFormat+580>: lwz r5,4(r31)
0x000ce518 <Stream_setFormat+584>: mr r4,r31
0x000ce51c <Stream_setFormat+588>: stw r3,28(r31)
0x000ce520 <Stream_setFormat+592>: mr r8,r29
0x000ce524 <Stream_setFormat+596>: lwz r7,4(r3)   <---- death strikes  
here
0x000ce528 <Stream_setFormat+600>: lwz r6,20(r31)
0x000ce52c <Stream_setFormat+604>: lis r31,16
0x000ce530 <Stream_setFormat+608>: addi r3,r31,1592
0x000ce534 <Stream_setFormat+612>: bl 0xcd1b0 <dprintf>

I believe we take r3 which is r3: 0x0000000000000000 and attempt to  
index by 4
and get a read failure  KERN_PROTECTION_FAILURE (0x0002) at 0x00000004

I believe the C code is
   s->buffer= Buffer_new((s->direction ? DeviceFrameSize :  
SqueakFrameSize) * nChannels * frameCount * 2);

   dprintf("stream %p[%d] sound buffer size %d/%d (%d)\n", s, s-
 >direction, s->imgBufSize, s->buffer->size, frameCount);

The short answer is frameCount is 0x000000007fffffff, and we build a  
bogus number to attempt to allocate memory with,
which fails, which then sets s->buffer to zero, and we die  
referencing s->buffer->size, which is the software bug.

Now lets look at the proof:

For non-debug Ian has #ifdefined the dprintf as:

  inline void dprintf(const char *fmt, ...) {}

interestingly enough the compiler still wants to pass the parms to a  
null routine, but the issue is when we do the
s->buffer->size  because s->buffer is zero and we die when we  
deference to access ->size

Now why would s->buffer be nil?

Buffer *Buffer_new(int size)
{
   Buffer *b= (Buffer *)malloc(sizeof(Buffer));
   if (!b)
     return 0;
   if (!(b->data= (char *)malloc(size)))
     {
       free(b);
       return 0;
     }
   b->size=  size;
   b->avail= 0;
   b->iptr=  0;
   b->optr=  0;
   return b;
}

We pass in size, and allocate the Buffer structure, if that fails we  
return zero, then we allocate size for the data, if that fails, then  
we would return 0.

I believe
r3 is  s->buffer   0x0000000000000000
r4 is  s  0x0000000000411920
r5 is  s->direction  0x0000000000000001
r6 would be s->imgBufSize we don't assign it before crash
r7 would be s->buffer->size but we crash calculating that
r8 is frameCount      ->>>>>>>>>>   0x000000007fffffff   Bad evil  thing

typedef struct Stream
{
   AudioDeviceID id; // associated with this stream
   int direction; // 1nput/0utput
   int sampleRate; // Squeak frames per second
   int channels; // channels per Squeak frame
   int devBufSize; // bytes per device buffer
   int imgBufSize; // bytes per Squeak buffer
   int cvtBufSize; // bytes per converter buffer
   Buffer *buffer; // fifo
   AudioConverterRef converter; // frame format converter
   int semaphore; // ping me!
   u_int64_t timestamp; // nominal buffer tail time (uSecs)
}


I see that we call Stream_setFormat via

  int sound_StartRecording(int samplesPerSec, int stereo, int semaIndex)
{
   Stream *s= 0;

   dprintf("snd_StartRecording rate: %d stereo: %d semaIndex: %d\n",
           samplesPerSec, stereo, semaIndex);

   if (input) // there might be a change of sample rate
     sound_StopRecording();

   if ((s= Stream_new(1))) // 1nput
     {
       // approximate the frameCount that output uses for the same  
sample rate
       int frameCount= 5288 * samplesPerSec / 44100;
       if ((  Stream_setFormat(s, frameCount, samplesPerSec, stereo))
          && Stream_startSema(s, semaIndex))


I'm wonder here if you have a integer overflow situation calculating  
frameCount base on your passed in samplesPerSec.

Thus you should check the values you are passing into the start sound  
primitive, it's likely a stack dump at this point
would show the variables btw.



Thread 0 crashed with PPC Thread State 64:
   srr0: 0x00000000000ce3c4 srr1:  
0x000000000000f030                        vrsave: 0x0000000000000000
     cr: 0x24024444          xer: 0x0000000000000004   lr:  
0x00000000000ce3b4  ctr: 0x0000000000000001
     r0: 0x0000000000000000   r1: 0x00000000bfffc9c0   r2:  
0x00000000000ce3b4   r3: 0x0000000000000000
     r4: 0x0000000000411920   r5: 0x0000000000000001   r6:  
0x00000000ffffffff   r7: 0x0000000000000007
     r8: 0x000000007fffffff   r9: 0x00000000a0001fac  r10:  
0x000000000000000d  r11: 0x0000000044024442
    r12: 0x000000009000660c  r13: 0x0000000000122c70  r14:  
0x00000000bfffcc00  r15: 0x00000000a321c4f8
    r16: 0x000000000041cca0  r17: 0x00000000bfffd0e0  r18:  
0x000000004a4d4d32  r19: 0x000000004a4d4d32
    r20: 0x000000000041ce90  r21: 0x00000000ffffd96e  r22:  
0x0000000000000000  r23: 0x0000000000001340
    r24: 0x0000000000122c70  r25: 0x0000000000100000  r26:  
0x0000000000000001  r27: 0x00000000000014a8
    r28: 0x0000000000100000  r29: 0x000000007fffffff  r30:  
0x0000000000000001  r31: 0x0000000000411920


On Jan 9, 2007, at 6:58 AM, efimov wrote:

--
========================================================================
===
John M. McIntosh <[hidden email]>
Corporate Smalltalk Consulting Ltd.  http://www.smalltalkconsulting.com
========================================================================
===